Powdermetallurgical foaming method becomes an important research aspect in the field of metallic foams.
粉末冶金发泡法是目前泡沫金属研究领域的一个热点方向。
2
A series of tests have been done on contact without spring by means of powdermetallurgical connection, which provide reliable evidence on its application.
对采用粉末冶金方式连接的自力型触头进行了一系列的试验，为它的应用提供了可靠的根据。
3
The technique of warm compaction has huge advantage in manufacturing the low cost, high density, high strength and high fineness powdermetallurgical parts.